import time,requestes
from tomorrow import threads
@threads(10)#使用装饰器，这个函数异步执行
def  download(url):

  return requests.get(url)
def  main():
  start = time.time()
  urls = [
   'https://pypi.org/project/tomorrow/0.2.0/',
   'https://www.cnblogs.com/pyld/p/4716744.html',
   'http://www.xicidaili.com/nn/10',
   'http://baidu.com',
   'http://www.bubuko.com/infodetail-1028793.html"Time: %f seconds" % (end - start))
if  __name__=="__main__":
  main()